fkie_cve-2025-21998
Vulnerability from fkie_nvd
Published
2025-04-03 08:15
Modified
2025-04-10 16:15
Severity ?
4.7 (Medium) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: firmware: qcom: uefisecapp: fix efivars registration race Since the conversion to using the TZ allocator, the efivars service is registered before the memory pool has been allocated, something which can lead to a NULL-pointer dereference in case of a racing EFI variable access. Make sure that all resources have been set up before registering the efivars.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c4e37b381a7a243c298a4858fc0a5a74e737c79aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/da8d493a80993972c427002684d0742560f3be4aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f15a2b96a0e41c426c63a932d0e63cde7b9784aaPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.14
linux linux_kernel 6.14
linux linux_kernel 6.14
linux linux_kernel 6.14
linux linux_kernel 6.14
linux linux_kernel 6.14
linux linux_kernel 6.14


To clipboard 

{
  "configurations": [
    {
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        {
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              "matchCriteriaId": "526713EC-733E-4163-BEC2-8DC94D735FDB",
              "versionEndExcluding": "6.12.21",
              "versionStartIncluding": "6.11",
              "vulnerable": true
            },
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              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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              "versionStartIncluding": "6.13",
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: qcom: uefisecapp: fix efivars registration race\n\nSince the conversion to using the TZ allocator, the efivars service is\nregistered before the memory pool has been allocated, something which\ncan lead to a NULL-pointer dereference in case of a racing EFI variable\naccess.\n\nMake sure that all resources have been set up before registering the\nefivars."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: firmware: qcom: uefisecapp: correcci\u00f3n de la ejecuci\u00f3n de registro de efivars. Desde la conversi\u00f3n al uso del asignador TZ, el servicio efivars se registra antes de asignar el pool de memoria, lo que puede provocar una desreferencia de puntero nulo en caso de un acceso a variable EFI en ejecuci\u00f3n. Aseg\u00farese de que todos los recursos est\u00e9n configurados antes de registrar las efivars."
    }
  ],
  "id": "CVE-2025-21998",
  "lastModified": "2025-04-10T16:15:28.363",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 4.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-04-03T08:15:15.243",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/c4e37b381a7a243c298a4858fc0a5a74e737c79a"
    },
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    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-367"
        },
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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